kiser



March 10, 1964 v. R. KISER 3,124,057

. PORTABLE CAMP STOVE Filed Aug. 1, 1961 3 Sheets-Sheet 1 INVENTOR.VERNON R. KISER March 10, 1964 v. R. KISER 3,124,057

PORTABLE CAMP STOVE Filed Aug. 1, 1961 3 Sheets-Sheet 2 .muuumu WW-INVENTOR.

VERNON R. KISER March 10, 1964 v. R. KISER PORTABLE CAMP STOVE FiledAu 1. 1961 5 Sheets-Sheet 3 FIG. I.O

INVENTOR. VERNON R KISER United States Patent Filed Aug. 1, 1961, er.No. 128,573 12 Claims. (Cl. 99-340) This invention relates generally tostoves and more particularly to improvements in a portable camp stovehaving a collapsible and folding oven which, together with otherattachments and accessories, may be packed within the stove casing whilebeing stored or transported.

It is a primary object of the invention to provide an improved portablecamp stove having a casing usable as a stove fire box and a removableand collapsible oven receivable within the stove casing when the latteris not being used for cooking purposes, for storage and transport toanother location.

Another object of the invention is to provide an improved portable campstove of the above described characteristics wherein the stove casing isprovided with a reversible cover which doubles as a frying pan and whichalso locks the stove and oven together as a unit when the oven is beingused for cooking.

A further object of the invention is to provide an improved portablecamp stove having the above described characteristics and which isfurther provided with additional accessories such as a motorized spit,grates, re movable shelf trays, etc., which accessories are alsostorable in the stove casing and thus readily available to greatlyincrease the versatility of the stove as to types of cooking operations,kinds of fuel which may be burned, and the like.

A still further object of the invention is to provide an improvedportable camp stove, of the above described characteristics, havingpivoted le s and detachable braces therefor, said legs being rotatableto four different positions wherein they function first, as supports forthe stove, second, as supports for a rotatable spit, third, as carryinghandles and fourth, in a storage position, to occupy a minimum of space.

Yet another object of the invention is to provide an improved portablecamp stove, of the above described ch racteristics, having a detachablechimney with a damper disposed therein, and a hinged ash door which alsoserves as a draft control for the stove.

Still another object of the invention is to provide an improved portablestove, of the above described characteristics, which is of simplifiedconstruction, which may be easily and inexpensively fabricated, whichhas an oven easy to unfold and assemble together with other components,accessories or attachments, and which is also exceedingly simple tocollapse, or fold, and dismantle for packing inside the stove casing instorage condition.

The novel features that are considered characteristic of the inventionare set forth with particularity in the appended claims. The inventionitself, however, both as to its organization and its method ofoperation, together with additional objects and advantages thereof, willbest be understood from the following description of a specificembodiment when readin connection With the accompanying drawings whereinlike reference characters indicate like parts throughout the several.figures and in which:

FIG. 1 is a perspective view of a stove, constructed in accordance withthe invention, in which the oven and certain accessories have beenremoved from the stove compartment and installed for use as arr ovenrotisserie combination;

FIG. 2 is a perspective view similar to FIG. 1 but with the oven removedand a motorized spit installed on the legs of the stove;

FIG. 3 is a perspective view of the stove with the 3,124,057 PatentedMar. 10, 1964 oven section collapsed and packed together with othercomponents, attachments and accessories inside the stove compartmentwhere they are not visible in the View and with the stove legs moved toan upper carrying position;

FIG. 4 is a perspective view of the oven section only with its wallspartially unfolded, the arrows indicating the direction and sequence formoving the Walls to fold or collapse the oven into a flat package;

FIG. 5 is a plan view of the collapsed oven inverted and resting uponthe upper wall;

PEG. 6 is a fragmentary end elevational view of the stove as pictured inFIG. 2 with certain of the accessories omitted;

FIG. 7 is an elevational view similar to FIG. 6 but with the legs movedto a stove supporting position;

FIG. 8 is a fragmentary sectional view taken on line $o of FIG. 6 andlooking in the direction of the arrows;

FIG. 9 is a fragmentary sectional View taken on line 9-9 of FIG. 1 andlooking in the direction of the arrows;

FIG. 10 is a fragmentary sectional View taken on line lltl-1lli of HQ. 1in the direction of the arrows;

FIG. 11 is a fragmentary perspective view showing application of animplement for lifting the frying pan closure of the stove chamber;

FIG. 12 is a fragmentary sectional view taken in the direction of thearrows from line 12-12 of F116. 11;

FIG. 13 is a sectional View similar to FIG. 12 but showing the liftingimplement applied to the inverted frying pan stove cover, and

FIG. 14 is a fragmentary perspective View of a portion of a strap bracefor support of a rotatable spit.

Referring now more particularly to the drawings, there is shown in FIGS.13, a preferred embodiment of the stove according to this invention ascomprising a stove, or firebox, compartment generally indicated at Itand an oven compartment generally indicated at 80, the oven beinginstalled on the stove in FIG. 1 but removed therefrom in FIG. 2 andfolded and collapsed for storage within the storage compartment in FIG.3.

The stove comprises front and rear walls 12 and 14 respectively, abottom wall, not visible in these views, end walls 16 and a partiallycovering top wall 113. These walls enclose and form the stove chamber orfire box, the opening at the top being adapted to be covered by theremovable closure 2%. Inside the stove is a grate 22 upon which may beplaced the fuel to be burned, said grate being removably supported oncleats 24 and 26 at different levels. The top wall 18 has an opening 39to removably receive a short chimney 32 which carries a damper operableby the protruding handle 34. To permit entry of air and further controlthe draft, a sliding partition 36, having a hand grip flange 38 at oneend and a plurality of vent openings 40 is provided. This partition isslidable in track flanges 42 formed on a separate panel 44- which ishinged at the bottom edge of one of the walls 16 by means of the pianohinge 46. Panel 2-4 has openings 48 similar to openings 4% (see FIG. 2)so that upon movement of the draft panel 36 to change the registry ofthe openings 40 and 48, the draft of air into the fire box may bemodified. When the damper panel 44 is moved outwardly on the piano hinge46, the lower part of the stove under the grate 22 is accessible forremoval of ashes.

A pair of tubular handles 50, each bent into U-shape, are pivoted attheir free ends to the end Wall 16 by pivot means 51. Consequently, whenthe stove is to be carried, the legs may be moved to an upper positionas shown in FIG. 3 wherein the transverse portions, or bights of the Us52 may be grasped for lifting the stove. When the stove is to be stored,the handles 50 may be turned in the direction of the arrows asillustrated in FIG. 3 to the broken line positions shown in which thebight of one handle lies adjacent to and against the top surface of thestove at one edge and the bight of the other handle lies against thelower edge of the front surface 12. Thus disposed, the handles occupy aminimum of space since they rest directly against the stove casing.

The store 19 may be supported above a surface by turning the legs 5% ontheir pivots to occupy a downwardly extending spread position such as inFIGS. 1 and 7. The legs are secured in such position by a brace strap54- which has an angle cross section including a flange 56 which seatsunder the lower edge of the stove. At each end, flange 56 has aninturned finger 57 which together embrace the stove walls 12 and 14 andprevent longitudinal movement of the brace. The ends 53 of the brace arecurled inwardly to slidably grasp the legs when positioned thereover andare directed at angles so as to hold the legs in spread condition.Portions 58 are spaced at their free edges from the body of strap 54 sothat the brace may be lifted away from the legs 50 without neces sarilysliding the complete lengths of the legs into the brace. As clearlyindicated in FIG. 7, the strap flange 56 comes to rest under the stoveso that further sliding movement, which would otherwise be caused by theweight of the stove, is prevented and the stove is firmly positioned onthe legs as shown.

As indicated in FIG. 6, the stove may rest on its bottom wall with legs50 tunred upwardly to diverge from each other. In such instance, thebrace 54 is inverted and the curved ends 58 again slidably engage thelegs while the flange 56 comes to rest on the upper edge of the stovepreventing further spreading movement of the legs.

With the legs in this position, as best illustrated in FIG. 2, a pair ofangle straps 60, somewhat similar in shape to the brace 54, may bedisposed over the bights 52 of the legs by means of curved end portions62. Centrally, one strap 60 has, welded or otherwise suitably securedthereto, an upstanding finger 64 having a circular opening 66 to act asa bearing for spit 140. The other strap 60 is provided with a similarfinger 68 (see FIG. 14) having a groove 69 in its upper edge forreceiving the spit.

A pair of detachable trays 70 are provided for extending the worksurface of the stove at its front and rear. Each tray is formed with adownturned peripheral flange 72 with cutouts 74 at the inner corners topermit the trays to be slid inside the upstanding vertical walls 12 and14 of the stove with the flanges 72 engaging the inner surfaces of suchwalls. Each tray is then supported in position by a pair of triangularshaped wire braces 76. Each brace is preferably an obtuse angle trianglewith one side engaged in hinges 78 at the under side of the tray 70, asecond side engageable with the walls 12 and '14 of the cook stove andan angle point bearing against wall 72. of the tray. The brace, when soconstructed, bears against the cook stove at only one point which isbelow the high heat area. The braces may be folded in their hinge mounts78 to lie flat within the confines of the flanges 72 when not in use andin such condition may be stored within the stove It} with the otheraccessories.

The collapsible oven '80 comprises an upper horizontal panel 82 havingdownturned peripheral flanges 84. A pair of end walls 86 are hinged tothe flanges of upper wall 82 by means of piano type hinges 88. Atvarious levels, the end walls 86 are provided with keeper brackets 90for reception of removable shelves, not shown. At the vertical edges ofeach of the end walls 86, are hinged front and rear panels 92 and 94respectively. The two rear panels 94, when folded into alignment, formthe rear wall of the oven and are secured in such position by engagementof the upper edges of the panels with the flange of the top panel and byengagement of the lower edges of the panels with the inside surfaces ofthe upper edge of the stove wall 14. The front panels 92 are slightlyshorter in length than the rear panels 94 and are [thus openable overthe tray 7) when positioned on the stove at the front thereof. One frontpanel 92 has a keeper latch 96 adapted to engage behind the downturnedflange 84 of the top panel to hold the doors in closed position. Anaperture 98 is also provided in panel 92 for reception of an oventhermometer 1%.

Each oven side panel 86 is provided with a bearing opening 1&4- for thespit and, at its lower edge, with a pair of outturned brackets 166which, when the oven is unfolded and inserted in the stove top, serve tosupport the oven by resting on the stove bracket 108, as best shown inFIG. 10. The outturned portions of brackets 166 will, in that position,fit under the downturned lip 17 formed peripherally on the upper edgesof the stove walls. When the stove cover 20 is seated within the oven onthe bracket 16% of the stove, the cover will press outwardly against thebrackets 106. This holds the oven unfolded and locks the oven to thestove 10 against upward removal of the oven because of retention ofbrackets 1% under lip 17. The stove and oven will, therefore, beconnected to operate as a single unit and cannot be dissassociated untilthe cover 20 is first lifted and removed from the inside of the oven.The same locking function is performed by the closure 20 when it isinverted and inserted for use as a frying pan. Alternatively, the pan21'} may be replaced by a grill 110, FIG. 9, which also locks the stoveand over together. FIG. 4 shows the relation of the various panelscomprising the oven and indicates in the numbered sequence 1-6 and thedirections of the arrows how the panels may be folded on their hinges tooccupy a minimum of space. To collapse the oven, each end panel isturned upwardly and toward the upper panel 82 with the front and rearpanels hinged thereto turned outwardly in the direction of the arrows.In the collapsed condition, FIG. 5, each panel lies adjacent the nextone and all are confined the space bounded by the flange 84 of the toppanel 82 which has been inverted and is now at the bottom of the stackedpanels. When collapsed, the oven will easily fit Within the stove casingfor storage or transportation.

To open the oven after inversion, to place panel 82 on top, it isapparent from FIG. 4 that the end panels 86 are turned downwardly andthe front and rear panels are then turned outwardly in directionsopposite to the arrows of the figure.

In FIGS. 11-13 is shown a lifter implement for removing, or inserting,the frying pan stove closure 20 from the oven through the open ovendoors 92. The lifter comprises a handle 122 made of a rod bent into anelongated U-shape and Welded, or otherwise secured, at the free ends tothe upper surface of a short channel member 124. The horizontallydisposed web of the channel 124 has an integral downturned flange 126with a slightly inturned lip 128 and a shorter downturned flange 130having an inturned lip 132. Spaced closely adjacent to the flange 126and fixed to the under surface of the web of the channel 124, is abracket 136 having a downturned flange parallel to flange 126. As shownin FIG. 12, the upturned edge, or flange 21, of the frying pan 20 fitsbetween the fianges 126 and 136 of the lifter so that upon slightturning of the lifter and upward movement thereof, the frying pan flangewill be held by the lifter to move therewith. If the frying pan 20 isinverted, as shown in FIG. 13, a detent bracket 138 secured to the underside of the frying pan and having a right angle flange engageable overthe lip 132 of the lifter while the flange and lip 128 of the implementbear against the flange 21 of the pan to hold the pan for lifting. Thus,one implement 120 is usable to lift the frying pan whether it is in itsnormal or inverted position within the oven or on the stove with theoven removed.

When the oven is assembled, as shown in FIG. 1, it may be used withshelves inside to hold food to be roasted or baked, or the spit 14%) maybe inserted to rest with its end-s rotatably supported in the openings104. The spit is provided with conventional type forks 142 which aredetachably secured thereto by screws having wing nuts 143, as shown inFIG. 2. The spit is adapted to be operated as an oven rotisserie turnedby a motor contained in the housing 144 which also may include drycells, or the like, for energizing the motor. In FIG. 2, the rotatablespit is mounted to turn in the bearing brackets 64 and 68 forming partof the support straps 66 and having the bearing openings 66 and 69, aspreviously described. In this view, the spit, which can be turned byhand, is shown as being turned by an electric motor housed in the casing146 and having a cord 143 for connection to a source of electric power.

The entire stove is made of metal or other suitable material ofsufficient strength to support the cooking utensils and maintain itsshape under the heat generated therein. Various parts of the stove, ovenand accessories are suitably painted, enameled orplated to present apleasing appearance.

It will be readily apparent from the above description that the presentinvention provides a portable camp stove which is versatile to performall kinds of cooking in virtually any location. When set up as in H6. 2,it is adapted to charcoal broil, smoke cook, barbecue or fry. And, whenset up as a complete oven and stove combination, as shown in FIG. 1, itis adapted for use in baking, roasting and other types of oven cooking.The damper provided in the chimney and the adjustable openings 4d, a? inthe fire box door 36 permit the regulation of the fire and thetemperature needed for the cooking at hand. These, together withadjustable cast iron grates enable all types of fuel such as wood,charcoal, coke, etc., to be used. It should also be clear from the abovedescription that the camp stove may be quickly set up, or taken down,and that when the oven is collapsed and packed with all the accessoryparts in the stove compartment, the device occupies very little spaceand may be easily carried by means of the handles which, during use ofthe stove, function as legs or spit supports.

Although a certain specific embodiment of the invention has been shownand described, it is obvious that many modifications thereof arepossible. The invention, therefore, is not to be restricted exceptinsofar as is necessitated by the prior art and by the spirit of theappended claims.

What is claimed is:

1'. A portable stove comprising walls defining an enclosure, a pair ofhandles each of U-shape pivoted at their free ends to opposite walls ofthe stove, said handles being rotatable from a lower position in whichthey extend below the stove for support thereof to two upper positionsin which they extend above the stove, said handles in one of said upperpositions having their bights engaged to be grasped for carrying thestove, a detachable strap slideably engaging said handles to hold themin said lower and spread condition, said strap having inturned endportions slideably grasping said handles and a flange seating under andengaging a wall of the stove to prevent further outward spread of thehandles under weight of the stove, and said detachable strap beinginverted and engaged with the handles in the second of their upperpositions with said flange seating on an upper edge of a wall of thestove wherein the handles are fixed in said second upper position andspread in diverging directions for support of a rotatable spit.

2. A portable stove according to claim 1, wherein said handles aremovable to a fourth position for minimum space storage in which one ofsaid handles is rotated upwardly until its bight lies against andparallel to the upper surface of the stove and the other handle isrotated in the same direction downwardly about the stove until its bightengages and is parallel to a vertical wall of the stove above andadjacent the lower edge thereof.

3. A portable stove according to claim 1, wherein an additional pair ofstraps is provided having inturned ends seating over the bights of thehandles in their second upper position, each of said pair of strapsincluding an upstanding finger having a bearing opening for a rotatablespit.

4. A portable stove comprising a bottom wall, vertical side, front andrear walls, a top wall partly enclosing the interior of the stove, anopening in said top wall removably receiving a chimney including adamper, a draft and ash removal opening in the lower portion of one ofsaid side, front and rear walls, a panel having openings hinged to saidone wall and pivotally movable to engage and cover said draft openingand away from said wall to uncover the draft opening to permit ashremoval, a panel having draft openings slideably mounted on said hingedpanel to re ulate the draft, and a top closure for the stove removablyseated on the front and rear walls to enclose the open top next to saidtop wall, in combination with a collapsed oven stored within the stove,said oven having a top panel having a downturned peripheral flange, apair of end panels hinged to the ends of said top panel, each of saidend panels having a rear panel and a door panel hinged at the sidesthereof whereby the end, rear and door panels may be folded to lie flatagainst the underside of the top panel and within the confines of theperipheral flange on the top panel.

5. A portable stove according to claim 4, wherein said oven in unfoldedcondition is received in the upper portion of the open top of the stove,the rear and door panels of the oven forming extensions of the verticalwalls of the stove, and means for locking said unfolded oven to thestove.

6. A portable stove comprising a plurality of vertical walls and ahorizontal bottom wall enclosing a stove chamber, said chamber beingpartly open at the top, said vertical walls at their upper edges havinginturned and downwardly directed lips, in combination with a collapsibleoven engaging said upper edges of said stove when unfolded, said ovenincluding an upper panel, a pair of end panels hinged to the end-s ofsaid upper panel, each of said end panels having a rear panel hinged tothe rear edge thereof and movable into aligned positions to form therear wall of the oven, and each of said end panels having a door panelhinged to the front edges thereof, said end panels each having at leastone outwardly directed cleat seated within the stove and supporting theoven in the open top of the stove, and a locking member seated withinthe oven and pressing said cleats outwardly into engagement under thelips of the stove at the upper edges thereof whereby to lock the oven inunfolded condition on the stove.

7. A portable stove according to claim 6, wherein said locking membercomprises a plate covering the open upper part of the stove when theoven is collapsed and folded and removed from the stove.

8. A portable stove according to claim 7, wherein said plate comprises apanel having a downturned peripheral flange, said plate being receivablein the open upper part of the stove when inverted for use as a fryingpan positioned between the stove and the oven and locking the oven tothe stove.

9. A portable stove according to claim 6, wherein said locking membercomprises a grill positioned between the stove and the oven and adaptedto support articles within the oven over the stove.

10. A portable stove according to claim 6, wherein is additionallyprovided a separable side tray,.said tray com prising a flat panelhaving downturned peripheral flanges one of said flanges seated over andwithin an upwardly extending open edge of the stove, said flat panelhaving a foldable brace member hinged to its under surface and adaptedwhen turned to be received within the confines of said peripheralflanges, said brace member having a portion in engagement with avertical wall of the stove to secure the tray as a horizontal shelfsurface extending from the stove at the level of the bottom of saidoven, and said tray and said oven when removed from the stove and foldedto collapsed condition are received within the confines of the stove forstorage.

11. A portable stove according to claim 10, wherein said brace membercomprises a triangular shaped rod one side of which is secured in thehinge under the tray panel and one point only of a second side of whichrests against a vertical Wall of the stove when in unfolded position.

12. A portable stove comprising a bottom wall, vertical side, front andrear walls, a top wall partly enclosing the interior of the stove, anopening in said top wall for reception of a chimney including a damper,a draft and ash removal opening in the lower portion of one of saidside, front and rear walls, a movable panel with openings thereinclosing said draft opening, a panel having draft openings slidablymounted on said movable panel to regulate the draft, a top closure forthe stove removably seated on the front and rear walls to close the opentop next to said top Wall, a collapsed oven stored within the stove,said oven having a top panel having a downturned peripheral flange, apair of end panels hinged to the ends of said top panel, each of saidend panels having a rear panel and a door panel hinged at the sidesthereof whereby the end, rear and door panels may be folded to lie flatagainst the underside of the top panel and within the confines of theperipheral flange on the top panel, said oven in unfolded conditionbeing received in the upper portion of the open top of the stove withthe rear and door panels of the oven forming extensions of the verticalwalls of the stove, a detached, rotatable spit carried within saidstove, a pair of U-shaped legs pivoted at their free ends to oppositeWalls of the stove, said legs being rotatable from a lower position inwhich they extend below the stove to two upper positions in which theyextend above the stove, said legs in one of said upper positions havingtheir bights engaged to be grasped for carrying the stove and collapsedoven, and detachable means for securing the legs in the second of theirupper positions wherein the legs are spread in diverging directions forsupport of said rotatable spit.

References Cited in the file of this patent UNITED STATES PATENTS707,243 Leonard Aug. 19, 1902 1,092,027 Davis Mar. 31, 1914 1,222,325Robertson et al Apr. 10, 1917 1,244,932 Weyburn Oct. 30, 1917 1,366,444Baxter Jan. 25, 1921 2,119,799 Sivey June 7, 1938 2,467,480 Hudson Apr.19, 1949 2,546,350 Spangler Mar. 27, 1951 2,600,234 Foley June 10, 19522,667,392 Sexton Jan. 26, 1954 2,708,925 Cordrey May 24, 1955 2,838,991Kleinmann June 17, 1958 2,893,373 Rundle July 7, 1959 3,008,406 Reeveset al Nov. 14, 1961 FOREIGN PATENTS 575,795 Germany Apr. 13, 1933

1. A PORTABLE STOVE COMPRISING WALLS DEFINING AN ENCLOSURE, A PAIR OFHANDLES EACH OF U-SHAPE PIVOTED AT THEIR FREE ENDS TO OPPOSITE WALLS OFTHE STOVE, SAID HANDLES BEING ROTATABLE FROM A LOWER POSITION IN WHICHTHEY EXTEND BELOW THE STOVE FOR SUPPORT THEREOF TO TWO UPPER POSITIONSIN WHICH THEY EXTEND ABOVE THE STOVE, SAID HANDLES IN ONE OF SAID UPPERPOSITIONS HAVING THEIR BIGHTS ENGAGED TO BE GRASPED FOR CARRYING THESTOVE, A DETACHABLE STRAP SLIDEABLY ENGAGING SAID HANDLES TO HOLD THEMIN SAID LOWER AND SPREAD CONDITION, SAID STRAP HAVING INTURNED ENDPORTIONS SLIDEABLY GRASPING SAID HANDLES AND A FLANGE SEATING UNDER ANDENGAGING A WALL OF THE STOVE TO PREVENT FURTHER OUTWARD SPREAD OF THEHANDLES UNDER WEIGHT OF THE STOVE, AND SAID DETACHABLE STRAP BEINGINVERTED AND ENGAGED WITH THE HANDLES IN THE SECOND OF THEIR UPPERPOSITIONS WITH SAID FLANGE SEATING ON AN UPPER EDGE OF A WALL OF THESTOVE WHEREIN THE HANDLES ARE FIXED IN SAID SECOND UPPER POSITION ANDSPREAD IN DIVERGING DIRECTIONS FOR SUPPORT OF A ROTATABLE SPIT.
 4. APORTABLE STOVE COMPRISING A BOTTOM WALL, VERTICAL SIDE, FRONT AND REARWALLS, A TOP WALL PARTLY ENCLOSING THE INTERIOR OF THE STOVE, AN OPENINGIN SAID TOP WALL REMOVABLY RECEIVING A CHIMNEY INCLUDING A DAMPER, ADRAFT AND ASH REMOVAL OPENING IN THE LOWER PORTION OF ONE OF SAID SIDE,FRONT AND REAR WALLS, A PANEL HAVING OPENING HINGED TO SAID ONE WALL ANDPIVOTALLY MOVABLE TO ENGAGE AND COVER SAID DRAFT OPENING AND AWAY FROMSAID WALL TO UNCOVER THE DRAFT OPENING TO PERMIT ASH REMOVAL, A PANELHAVING DRAFT OPENINGS SLIDEABLY MOUNTED ON SAID HINGED PANEL TO REGULATETHE DRAFT, AND A TOP CLOSURE FOR THE STOVE REMOVABLY SEATED ON THE FRONTAND REAR WALLS TO ENCLOSE THE OPEN TOP NEXT TO SAID TOP WALL, INCOMBINATION WITH A COLLAPSED OVEN STORED WITHIN THE STOVE, SAID OVENHAVING A TOP PANEL HAVING A DOWNTURNED PERIPHERAL FLANGE, A PAIR OF ENDPANELS HINGED TO THE ENDS OF SAID TOP PANEL, EACH OF SAID END PANELHAVING A REAR PANEL AND A DOOR PANEL HINGED AT THE SIDES THEREOF WHEREBYTHE END, REAR AND DOOR PANELS MAY BE FOLDED TO LIE FLAT AGAINST THEUNDERSIDE OF THE TOP PANEL AND WITHIN THE CONFINES OF THE PERIPHERALFLANGE ON THE TOP PANEL.